1. Knowledge Base
  2. Electrodes (General Questions)

When should I replace my electrode?

There are many factors that can affect the lifespan of an electrode, but there are general guidelines for different types of electrodes.

When Should You Replace Your Electrode?

Electrode Type Frequency
pH 18 - 24 Months
ORP 3 Years
Solid State ISEs 3 Years
Liquid Membranes for ISEs Quarterly
Silver Billet Electrodes 3 Years
Photometric Electrodes 3 Years